I don't know if the early front end & adapters is the "best option." Not to me. Locating a 43 mm '93+ triple trees & downtubes/sliders allows you to use the stock front wheel. eliminates speedo problems, allows mounting all stock accessories where they belong, i.e., handlebars, headlight, speedo, turn signals, brake splitter, fender, femder & fork brace... . About the only thing you have to do is get the '93+ 298 mm rotors and make sure your new calipers will fit. The 100 mm caliper spacing of the '93+ brakes allows a variety of calipers to be used, and if you want to keep it in the family, you can use 1000 cc FZR/YZF/R1 calipers, although for some of those calipers you may need the 320 mm rotors. The 1994 FZR1000 used a 6 pot caliper. No adapter needed. With a set of HH pads & s.s. brake lines, you have an upgrade which will cost far less than going with an USD sportbike front end. You could do the whole thing in a 2-3 hr. period if you already had good steering head bearings and didn't have to fit new ones. You don't have to use 'slugs' on the sportbike downtubes and since it's a 'remove & replace' effort, the average guy can do it in their carport and have the bike done in an afternoon, no machinists, no adapters, no expensive parts sourcing, and if you want, it can even be all-Yamaha.
If all you want to do is change calipers/rotors, then yes, the adapters for the early front end will save you a bit of dosh, as our Brit friends like to say.
Sure there's more than one way to do this, and that's the beauty of this bike isn't it? You can choose a path, easy or difficult, inexpensive or $$$, and arrive at a similar place. Any way you go, it's better than the stock pre-'93 front end, if you go to the '93+ front end at a minimum. In my opinion, spending $ on the '92-earlier front end just isn't worth the $, not when you can upgrade so easily. Just shop the parts sources, buy stuff on-sale/used, and when you have the parts acquisition completed, a few hours will result in a big change in the bike's road performance.
